Been slowly working on updating osCommerce from BSv3 to Bsv4 – mostly on my own as and when I can give some time…
It’s now released, enjoy it. Apparently there are some users in the osCommerce Forum who know Bootstrap 4, so you should be able to get some help.
Code:
https://github.com/gburton/Responsive-osCommerce
Demo:
https://template.me.uk/frozen2bs4/index.php
If you decide to use this and you want me to help your business move forward – email me.